- if amount_details['free_units'].to_f.positive?
  / Free units for the first
  tr.details
    td.body-2 = I18n.t('invoice.package.free_units_for_the_first', count: amount_details['free_units'])
    td.body-2 = amount_details['free_units']
    td.body-2 = MoneyHelper.format(0.to_money(amount_currency))
    td.body-2 == TaxHelper.applied_taxes(self)
    td.body-2 = MoneyHelper.format(0.to_money(amount_currency))
/ Fee per package
tr.details
  td.body-2 = I18n.t('invoice.package.fee_per_package')
  td.body-2 = amount_details['paid_units']
  td.body-2 = I18n.t('invoice.package.fee_per_package_unit_price', amount: MoneyHelper.format_with_precision(BigDecimal(amount_details['per_package_unit_amount']), amount_currency), package_size: amount_details['per_package_size'])
  td.body-2 == TaxHelper.applied_taxes(self)
  td.body-2 = MoneyHelper.format(amount)
/ Sub total
tr.details.subtotal
  td.body-2 = I18n.t('invoice.sub_total')
  td.body-2
  td.body-2
  td.body-2
  td.body-2 = MoneyHelper.format(amount)